tb62771ftg TOSHIBA Semiconductor CORPORATION, tb62771ftg Datasheet
tb62771ftg
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tb62771ftg Summary of contents
Page 1
... TOSHIBA BiCD Integrated Circuit Silicon Monolithic TB62771FTG/FNG Step up type DC/DC controller built in 4 channel sink driver for White LED TB62771FTG/FNG is a high efficient step-up type DC/DC controller specially designed for constant current drive of High power white LED. This IC can drive white LEDs with constant current by dividing white Led’ ...
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... Top view) CS PGND1 NDRV DRV VCC NDRV 1 DRV 2 VCC 3 VIN COMP FLT OVP 9 SETI TOP VIEW TOP VIEW 2 TB62771FTG/FNG DIM 10 AGND 9 RSDT 8 SETI 7 OVP 6 20 PGND1 OUT4 17 OUT3 16 PGND2 15 OUT2 14 OUT1 13 DIM 12 AGND 11 RSDT 2011-03-24 ...
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... Over Voltage Thermal Detector Shutdown & Protection Unused Open Chanel Detector Detector Current Regulator Logic Vref VCC LED current Controller 3 TB62771FTG/FNG Fault Flag FLT Logic Short RSDT Detector OUT1 Current Regulator1 Current OUT2 Regulator2 Current OUT3 Regulator3 Current OUT4 Regulator4 SETI Ｐ ...
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... Power Supply input for the control circuits of switching MOSFET gate. P Connect Resistance between DRV and 5V regulator output VCC. And connect DRV to PGND with minimum of 0.1μF Bypass capacitor. 5V Regulator Output. O Connect to GND with minimum of 1.0μF capacitor as close to the device. - Exposed Pad. Connect to AGND. 4 TB62771FTG/FNG 2011-03-24 ...
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... VDRV 0.1μF RSDT 20kΩ FLT EN DIM COMP 200Ω 0.022μF AGND PGND1 22μH VIN NDRV 2.4ｋΩ CS 0.1Ω OVP 1000pF OUT1 OUT2 OUT3 OUT4 15ｋΩ SETI 21ｋΩ RT PGND2 5 TB62771FTG/FNG 33μF 261kΩ 10kΩ 2011-03-24 ...
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... DRV, FLT , DIM, RSDT, OVP IN2 V CS, RT, COMP, SETI IN3 V NDRV IN4 V OUT1, OUT2, OUT3, OUT4 out (j-a) Topr Tstg Tj Symbol Condition rising IN 6 TB62771FTG/FNG Rating Unit −0.3 + −0.3 +0 −0 −0.3 +0 −0.3 +0 DRV −0.3 +45 ...
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... VIN - VCC, VIN = 4.75V, ILOAD = 50mA VCC connects to AGND VCC rising Symbol Condition 200kHz ~ 600kHz 600kHz ~ 2000kHz 200kHz ~ 2000kHz SW vs. actual typical frequency Symbol Condition Symbol Condition Peak slope for CS Input 7 TB62771FTG/FNG Min Typ. Max Unit 4.75 5.0 5. 200 500 mV - 100 - 100 ...
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... VOUT=5V, VCOMP=2.5V VOUT=5V, VCOMP=2.5V Symbol Condition ISINK = 100mA (nMOS) ISOURCE = 100ｍA (pMOS) VNDRV = 5V VNDRV = 0V CLOAD = 1nF CLOAD = 1nF Symbol Condition VOUT = VREF IOUT = 100mA VDIM = 0V, VOUT = 40V 8 TB62771FTG/FNG Min Typ. Max Unit 413 433 454 Min Typ. Max Unit - 0 ...
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... Thermal Shutdown Hysteresis Symbol Test Condition °C VEN rising VEN = 40V DIM↑ ~ IOUT↑(10%) DIM↓ ~ IOUT↓(10%) VIN = 4.75V, ISINK = 5mA VFLT = 5.5V Gain = 3.5 Output rising VOVP = 1.25V Temperature rising 9 TB62771FTG/FNG Min Typ Max Unit 1.144 1.23 1.316 ± ...
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... CONFIDENTIAL Package Dimensions QFN48 TB62771FTG/FNG 10 2011-03-24 ...
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... Toshiba does not grant any license to any industrial property rights by providing these examples of application circuits. 5. Test Circuits Components in the test circuits are used only to obtain and confirm the device characteristics. These components and circuits are not guaranteed to prevent malfunction or failure from occurring in the application equipment. TB62771FTG/FNG 11 2011-03-24 ...
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... DC voltage will increase. If this output voltage is connected to a speaker with low input withstand voltage, over current or IC failure can cause smoke or ignition. (The over current can cause smoke or ignition from the IC itself.) In particular, please pay attention when using a Bridge Tied Load (BTL) connection type IC that inputs output DC voltage to a speaker directly. TB62771FTG/FNG 12 2011-03-24 ...
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... R-type flux (2) Use of Sn-3.0Ag-0.5Cu solder Bath · solder bath temperature = 245°C · dipping time = 5 seconds · the number of times = once · use of R-type flux TB62771FTG/FNG 13 2011-03-24 ...
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... Please contact your TOSHIBA sales representative for details as to environmental matters such as the RoHS compatibility of Product. Please use Product in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances, including without limitation, the EU RoHS Directive. TOSHIBA assumes no liability for damages or losses occurring as a result of noncompliance with applicable laws and regulations. TB62771FTG/FNG 14 2011-03-24 ...